* Become accepted with the Followers of the Apocalypse.
* Take Arcade Gannon to the Crashed Vertibird, he will talk about how he hasn't seen one in a long time before quickly adding it must have been in a book.
* Take Arcade Gannon into the REPCONN Headquarters where he will talk about the history of REPCONN and its research into plasma weapons after being bought by RobCo, with an intelligence of 6 you can inquire where he learned about this but he will dodge the question.
* Taking Arcade Gannon into the Silver Rush in Freeside and he will start a dialog about plasma weapons. You can ask him how he knows so much about plasma weapons but he will dodge the question.
* During The White Wash agree to blame the Scorpions (gang) for the water shortage.
* Going to Camp McCarran after completing the quest There Stands the Grass and talking to Doctor Hildern about OSI will gain trust.
* Going to HELIOS One and speaking to the Fantastic, then assuring Arcade Gannon you'll reroute the power supply to Freeside.
* Take Arcade Gannon to the nuclear test shack at the Old Nuclear Test Site. He comments on how the Pre-War government "figured there was so much desert in Nevada they might as well turn it into a big dumping ground.
* Visit The Fort while Arcade is your companion. He will start a conversation with you. Respond with "Let's just listen to him, figure out what he's up to, and get out".
* Having ED-E as a companion before talking to Arcade instantly gives you the quest should you choose all the first options. (Non-functional on PC)
* Betting on Radscorpions in The Thorn with Arcade Gannon following you, make him comment after the fight with latin aphorism.